Change of adsorption/desorption of cesium on illite depending on the ionic strength of ion exchange electrolyte

Frayed edge sites are formed by weathering llite, which is highly selective for Cs. In this study, it was collapsed due to K+ in the interlayer, so that other cation exchange ions were hardly adsorbed and other cation exchange electrolyte were adsorbed on illite because Cs desorption was difficult. In other words, we intend to confirm the adsorption / desorption and structural change of Cs by Ca²⁺, Na⁺, K⁺ adsorption, Ca²⁺ with high hydration energy and de-collapse between layers through ion exchange electrolyte at high concentration and increase CEC capacity. We have experimented to changes of adsorption and desorption depending on Na⁺, K⁺, Ca²⁺ ionic strength. It was considered that one of the reasons why the concentration used for desorption of Cs was fixed at a low concentration of 3mM and could not be changed. Fortunately, we have found a good desorption effect on oxlic acid in 2:1 nonexpandable clay